Ouhon in my opinion is the best of the three. His martial might is easily on level with Shin's (maybe a little beat weaker plus he is grasp of strategy/tactics is easily on level with Mouten. He is basically the second coming of the Ou Ki (his relative) to he honest. Ou Ki was arguably the most balanced of the Qin Six generals in the sense that his every general stat was easily top top tier. Ou Hon is shaping up the same way. Kyokai could be similar of she is ever allowed to shine.